how to watch Deontay Wilder vs Joseph Parker? Date & Time, fight card, Stream. Deontay Wilder vs Joseph Parker date: UK start time, undercard and how to follow heavyweight clash in Saudi Arabia. Deontay Wilder returns to the ring for the first time in over a year as he takes on Joseph Parker on December 23. Back at Kingdom Arena in Riyadh, Saudi Arabia, is world-class boxing. Anthony Joshua the British former unified heavyweight champion will face Otto Wallin of Sweden as the main event on the “Day of Reckoning” fight card. Former WBO and WBC heavyweight champions Joseph Parker of New Zealand and Deontay Wilder of the United States square off in the co-feature. Jai Opetaia, the Australian cruiserweight champion will defend his title against Ellis Zorro the British boxer, also on the show. Wilder vs Parker: Date and Time This heavyweight fight will take place on December 23. It will be held at the Kingdom Arena in Riyadh, Saudi Arabia as part of a boxing extravaganza. Date: Saturday